广东省M市土壤-水稻系统重金属污染评价  

Evaluation of Migration of Heavy Metal Pollution in Soil and Rice System in M City of Guangdong Province

作　　者：卓秀英 ZHUO Xiu-ying(Huizhou Health Sciences Polytechnic,Guangdong Huizhou 516025,China)

机构地区：[1]惠州卫生职业技术学院,广东惠州516025

出　　处：《广州化工》2024年第13期112-113,132,共3页GuangZhou Chemical Industry

摘　　要：以广东省M市为例,研究和评价了农业用地土壤和水稻中重金属污染和迁移状况,采用地质累积指数法(Igeo)和食品重金属限量指标分别对土壤和水稻中重金属进行评价。结果表明:土壤中Cd、Pb、Hg、Zn和Cu的平均质量分数均超出广东省土壤背景值,部分重金属甚至超出国家土壤环境质量二级标准,其中Cd和Hg的污染最为严重。稻谷样品受重金属Cd的污染最为严重,食用受到重金属污染的稻谷会导致严重的健康危害。The situation and migration of heavy metal pollution between soil and rice in agricultural land in M city of Guangdong province were studied and evaluated.The heavy metals in soil and rice were evaluated with geoaccumulation index(I_(geo))and food heavy metal limits indicators.The results showed that the average concentrations of the heavy metals Cd,Pb,Hg,Zn and Cu in soil exceeded the soil background values of Guangdong province.Some heavy metals were even beyond national soil environmental quality standards.Cd and Hg were the predominant pollutants in all soils.The rice samples suffered from the pollution of heavy metal Cd.Eating rice contaminated by heavy metals can cause serious health hazards.

关 键 词：土壤 水稻 重金属 

分 类 号：X53[环境科学与工程—环境工程] X825